.png | CAS_number = 106-60-5 | ATC_prefix = L01 | ATC_suffix = XD04 | ATC_supplemental = | PubChem = 137 | DrugBank = APRD00793 | chemical_formula = C5H9NO3 | molecular_weight = 131.13 g/mol | bioavailability = | protein_bound = | metabolism = | elimination_half-life = | pregnancy_category = | legal_status = | routes_of_administration = }} D-Aminolevulinic acid (dALA or δ-ALA) is the first compound in the porphyrin synthesis pathway. It is produced by the enzyme ALA synthase, from glycine and succinyl CoA. This reaction is known as the Shemin pathway.

Levulan Consumer Information - FDA - Patient FAQ in html format with a link to approved labeling in pdf format.
MedlinePlus: Aminolevulinic Acid (Topical) - Features information about dosage, usage, warnings, and side effects.